Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Aeromagnetic data and horizontal gradient maxima of Blythe, California, and Surrounding Areas in California and Arizona

Metadata Updated: July 6, 2024

This data release provides access to an aeromagnetic survey and magnetization boundaries over Blythe, California and surrounding areas in southern California and western Arizona. The survey extends east of Joshua Tree National Park across the Colorado River and west over the Dome Rock, Trigo, and Plomosa Mountains in Arizona. The survey was flown north of the Chocolate Mountains Gunnery Range over the McCoy, Palen, Granite, Iron, and Big and Little Maria Mountains. These data were acquired between January 22 and February 24, 2022, by Eon Geosciences Inc., working under contract to the U.S. Geological Survey. The nominal flying height was based on a best fit, pre-planned, three-dimensional draped surface targeted at 305 m above terrain and a slope of 7%, subject to aircraft climb and descent limitations. Steep terrain in parts of the survey area required significant departures locally from the pre-planned drape surface (as much as 1012 m), and therefore variable terrain clearance should be considered when modeling and interpreting these data. Flight lines were spaced 600 m apart and directed N40E; tie lines were spaced 6000 m apart and directed N50W. A total of 22,273 line-kilometers were acquired over an area of approximately 12,310 square kilometers. The details of the Blythe aeromagnetic survey are described in the document Blythe_Tech_Report_508.pdf available for download in this data release. This report was prepared by Eon Geosciences Inc., and has not been edited. In addition, horizontal gradient maxima (blythe_mag_grad.csv) were calculated from the magnetic potential derived from these data to produce locations of crustal magnetization contrasts.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Identifier USGS:62c8d98ad34eeb1417bb1a94
Data Last Modified 20230131
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 4a2b4300-b7ba-4f2f-9a61-f3e5fc9d84a3
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -115.3922,32.9269,-113.7543,34.3506
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash ef75542c98ff0801d4cef23e6bc41856459dad2cb0f4a1eb118e5f3e764ed095
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -115.3922, 32.9269, -115.3922, 34.3506, -113.7543, 34.3506, -113.7543, 32.9269, -115.3922, 32.9269}

Didn't find what you're looking for? Suggest a dataset here.